The scheme offers customers the chance to collect a range of stuffed toy dogs in return for in-store points.
The 13-week in-store programme, handled by The Continuity Company (TCC), will run across the chain's 189 UK stores. With six designs to collect, the toys can be claimed in stores in exchange for 40 saver tokens.
Shoppers receive one token for every £5 spent at Netto, so would need to spend £1200 in 13 weeks to get all six toys.
TCC has created point-of-sale material, including shelf barkers and till prompts, as well as an online presence.